A mighty shocking autopsy report concludes cocaine contributed to the sudden death of pitchman Billy Mays back in June. The report, which was released today, lists "cocaine use" as a contributing cause of death -- along with hypertensive and arteriosclerotic heart disease....Official documents show the following drugs were in Mays' system -- hydrocodone (Vicodin), oxycodone (painkiller), alprazolam (Xanax), nordiazepam (Valium), benzoylecgonine (byproduct of cocaine) and temazepam (anti-anxiety). Ethanol -- alcohol -- was also in Mays' system.